Quote:
Originally Posted by Kevin M
I've had the opposite experiences as Cody- I would only recommend flex uppipes, as it's super easy to botch the install without it and cause a gasket to fail. He's never had an issue, but when I worked for Vishnu we had a lot of people with solid uppipes have problems, and very few with flex joints. Way back in the 20th century it wasn't uncommon for flex joints to fail, but I can't recall hearing about one happening in a really long time.
Happily, I happen to have a coated flex uppipe (pretty sure it's a Grimmspeed) that I ended up not using on my FXT if you're interested.
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+1
I was one of those people returning Vishnu solid up-pipes. Probably even talked to Kevin about it before I knew him.
Once I got the flex pipe, all my problems with blowing gaskets went away... until the build on my motor that used to run 1700F EGTs all the time... then I started seeing blown gaskets again, until the flex joint finally blew out. But that motor is gone now.
I'd stick with a flex pipe. They issues with the flex joints have been pretty well sorted out. You might end up needing to replace it every 5-7 years... but that's better IMO than having fitment issues on the solid pipe and going through gaskets twice a year.